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ISO 622:2025
Coal and coke — Determination of phosphorus — Reduced molybdophosphate photometric method
Summary
This document specifies a reduced molybdophosphate photometric method for the determination of the total phosphorus mass fraction of hard coal, lignites and coke. Two methods for taking the phosphorus into solution are specified, namely extraction from the coal or coke ash with acid or by repeated oxidation of the coal or coke, by acid, to remove carbonaceous matter.
Notes
60.60 : Norme internationale publiée
Technical characteristics
| Publisher | International Organization for Standardization (ISO) |
| Publication Date | 06/25/2025 |
| Edition | 3 |
| Page Count | 7 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
Replaces
18/11/2016
Superseded
, Reaffirmed
, Under review
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Previous versions
25/06/2025
Active
Most Recent
18/11/2016
Superseded
, Reaffirmed
, Under review
Historical